10212210012122 has 4 divisors (see below), whose sum is σ = 15318315018186. Its totient is φ = 5106105006060.

The previous prime is 10212210012077. The next prime is 10212210012127. The reversal of 10212210012122 is 22121001221201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5630080182841 + 4582129829281 = 2372779^2 + 2140591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10212210012122.

It is not an unprimeable number, because it can be changed into a prime (10212210012127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553052503029 + ... + 2553052503032.

Almost surely, 2^{10212210012122} is an apocalyptic number.

10212210012122 is a deficient number, since it is larger than the sum of its proper divisors (5106105006064).

10212210012122 is an equidigital number, since it uses as much as digits as its factorization.

10212210012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106105006063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10212210012122 its reverse (22121001221201), we get a palindrome (32333211233323).

The spelling of 10212210012122 in words is "ten trillion, two hundred twelve billion, two hundred ten million, twelve thousand, one hundred twenty-two".